/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.bigdata.schaduler.enums;

import com.baomidou.mybatisplus.annotation.EnumValue;
import lombok.Getter;

import java.util.HashMap;
import java.util.Map;

/**
 * command types
 */
@Getter
public enum CommandType {

  /**
   * command types
   * 0 start a new process
   * 1 start a new process from current nodes
   * 2 recover tolerance fault process
   * 3 recover suspended process
   * 4 start process from failure task nodes
   * 5 complement data
   * 6 start a new process from scheduler
   * 7 repeat running a process
   * 8 pause a process
   * 9 stop a process
   * 10 recover waiting thread
   */
  START_PROCESS(0, "start a new process"),
  START_CURRENT_TASK_PROCESS(1, "start a new process from current nodes"),
  RECOVER_TOLERANCE_FAULT_PROCESS(2, "recover tolerance fault process"),
  RECOVER_SUSPENDED_PROCESS(3, "recover suspended process"),
  START_FAILURE_TASK_PROCESS(4, "start process from failure task nodes"),
  COMPLEMENT_DATA(5, "complement data"),
  SCHEDULER(6, "start a new process from scheduler"),
  REPEAT_RUNNING(7, "repeat running a process"),
  PAUSE(8, "pause a process"),
  STOP(9, "stop a process"),
  RECOVER_WAITING_THREAD(10, "recover waiting thread"),
  RECOVER_SERIAL_WAIT(11, "recover serial wait"),
  ;

  CommandType(int code, String descp) {
    this.code = code;
    this.descp = descp;
  }

  @EnumValue
  private final int code;
  private final String descp;

  public int getCode() {
    return code;
  }

  public String getDescp() {
    return descp;
  }

  private static final Map<Integer, CommandType> COMMAND_TYPE_MAP = new HashMap<>();

  static {
    for (CommandType commandType : CommandType.values()) {
      COMMAND_TYPE_MAP.put(commandType.code, commandType);
    }
  }

  public static CommandType of(Integer status) {
    if (COMMAND_TYPE_MAP.containsKey(status)) {
      return COMMAND_TYPE_MAP.get(status);
    }
    throw new IllegalArgumentException("invalid status : " + status);
  }
}
